finished lazy data structure contracts
svn: r2458
This commit is contained in:
Robby Findler
parent
4bf37100d9
commit
bb9b8eb90e
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@ -70,8 +70,7 @@
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(let ([doms/c (map (λ (dom) (coerce-contract -> dom)) doms)]
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[rng/c (coerce-contract -> rng)]
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[dom-length (length doms)])
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(make-contract
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(apply build-compound-type-name '-> (append doms/c (list rng-name)))
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(make-->
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(lambda (pos-blame neg-blame src-info orig-str)
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(let ([partial-doms (map (λ (dom)
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((contract-proc dom)
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@ -83,7 +82,22 @@
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(λ (val)
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(check-procedure val dom-length src-info pos-blame neg-blame orig-str))
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partial-range
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partial-doms))))))
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partial-doms)))
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(apply build-compound-type-name '-> (append doms/c (list rng-name)))
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doms/c
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rng/c)))
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(define-struct/prop -> (proj-proc name doms rng)
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((proj-prop (λ (ctc) (->-proj-proc ctc)))
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(name-prop (λ (ctc) (->-name ctc)))
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(stronger-prop
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(λ (this that)
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(and (->? that)
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(andmap contract-stronger?
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(->-doms that)
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(->-doms this))
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(contract-stronger? (->-rng this)
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(->-rng that)))))))
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(define-syntax-set (->/real ->* ->d ->d* ->r ->pp ->pp-rest case-> object-contract opt-> opt->*)
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@ -30,13 +30,13 @@ which are then called when the contract's fields are explored
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|#
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(define (build-clauses name stx clauses)
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(define (build-clauses name coerce-contract stx clauses)
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(let* ([field-names
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(map (λ (clause)
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(syntax-case clause ()
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[(id . whatever) (syntax id)]
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[else (raise-syntax-error name
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"expected a field name at the beginning of a sequence"
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"expected a field name and a contract together"
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stx
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clause)]))
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(syntax->list clauses))]
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@ -58,7 +58,7 @@ which are then called when the contract's fields are explored
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(let ([maker-arg #`(λ #,(match-up (reverse prior-ac-ids)
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(syntax (x ...))
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field-names)
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ctc-exp)])
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(#,coerce-contract #,name ctc-exp))])
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(loop (cdr clauses)
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(cdr ac-ids)
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(cons (car ac-ids) prior-ac-ids)
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@ -75,7 +75,7 @@ which are then called when the contract's fields are explored
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(loop (cdr clauses)
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(cdr ac-ids)
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(cons (car ac-ids) prior-ac-ids)
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(cons (syntax ctc-exp) maker-args))]
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(cons #`(#,coerce-contract #,name ctc-exp) maker-args))]
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[(id ctc-exp)
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(raise-syntax-error name "expected identifier" stx (syntax id))]))]))))
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@ -46,7 +46,7 @@
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[(ctc-x ...) (generate-temporaries (syntax (fields ...)))]
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[(f-x ...) f-x/vals]
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[((f-xs ...) ...) (generate-arglists f-x/vals)]
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[wrap-name (string->symbol (format "~a-wrap" (syntax-e (syntax name))))])
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[wrap-name (string->symbol (format "~a/lazy-contract" (syntax-e (syntax name))))])
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#`
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(begin
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(define-values (wrap-type wrap-maker wrap-predicate wrap-get wrap-set)
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@ -70,11 +70,11 @@
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(define (predicate x) (or (raw-predicate x) (wrap-predicate x)))
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(define-syntax (struct/dc stx)
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;(ensure-well-formed stx field-count)
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(syntax-case stx ()
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[(_ clause (... ...))
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(with-syntax ([(maker-args (... ...))
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(build-clauses 'struct/dc
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(syntax coerce-contract)
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stx
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(syntax (clause (... ...))))])
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(syntax (contract-maker maker-args (... ...))))]))
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@ -86,25 +86,31 @@
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[(raw-predicate stct)
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;; found the original value
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(values #f (get stct selector-indicies) ...)]
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[(wrap-get stct 0)
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[else
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(let ([inner (wrap-get stct 0)])
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(if inner
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;; we have a contract to update
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(let-values ([(_1 fields ...) (loop (wrap-get stct 0))])
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(let-values ([(_1 fields ...) (loop inner)])
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(let-values ([(fields ...)
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(rewrite-fields (wrap-get stct 1) fields ...)])
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(wrap-set stct 0 #f)
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(wrap-set stct selector-indicies+1 fields) ...
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(values stct fields ...)))]
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[else
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(values stct fields ...)))
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;; found a cached version of the value
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(values #f (wrap-get stct selector-indicies+1) ...)]))])
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(values #f (wrap-get stct selector-indicies+1) ...)))]))])
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(wrap-get stct i+1)))
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(define (rewrite-fields stct ctc-x ...)
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(let* ([f-x (let ([ctc-field (contract-get stct selector-indicies)])
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(define (rewrite-fields contract/info ctc-x ...)
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(let* ([f-x (let ([ctc-field (contract-get (contract/info-contract contract/info) selector-indicies)])
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(let ([ctc (if (procedure? ctc-field)
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(ctc-field f-xs ...)
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ctc-field)])
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(((proj-get ctc) ctc) ctc-x)))] ...)
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((((proj-get ctc) ctc) (contract/info-pos contract/info)
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(contract/info-neg contract/info)
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(contract/info-src-info contract/info)
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(contract/info-orig-str contract/info))
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ctc-x)))] ...)
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(values f-x ...)))
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(define (stronger-lazy-contract? a b)
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@ -114,22 +120,30 @@
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(contract-get b selector-indicies)) ...))
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(define (lazy-contract-proj ctc)
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(λ (pos neg src-info orig-str)
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(let ([contract/info (make-contract/info ctc pos neg src-info orig-str)])
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(λ (val)
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(unless (or (wrap-predicate val)
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(raw-predicate val))
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(blame (format "expected <~a>, got ~e" 'name val)))
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(raise-contract-error
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val
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src-info
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pos
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neg
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orig-str
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"expected <~a>, got ~e" 'name val))
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(cond
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[(already-there? ctc val lazy-depth-to-look)
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val]
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[else
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(wrap-maker val ctc)])))
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(wrap-maker val contract/info)])))))
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(define (already-there? ctc val depth)
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(cond
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[(raw-predicate val) #f]
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[(zero? depth) #f]
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[(wrap-get val 0)
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(if (contract-stronger? (wrap-get val 1) ctc)
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(if (contract-stronger? (contract/info-contract (wrap-get val 1)) ctc)
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#t
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(already-there? ctc (wrap-get val 0) (- depth 1)))]
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[else
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@ -138,7 +152,8 @@
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#f]))
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(define (struct/c ctc-x ...)
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(contract-maker ctc-x ...))
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(let ([ctc-x (coerce-contract struct/c ctc-x)] ...)
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(contract-maker ctc-x ...)))
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(define (no-depend-apply-to-fields ctc fields ...)
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(let ([ctc-x (contract-get ctc selector-indicies)] ...)
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@ -157,6 +172,21 @@
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[else
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(error selector-name "expected <~a>, got ~e" 'name struct)]))
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(define (lazy-contract-name ctc)
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(let ([list-of-subcontracts (list (contract-get ctc selector-indicies) ...)])
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(cond
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[(andmap contract? list-of-subcontracts)
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(apply build-compound-type-name 'struct/c list-of-subcontracts)]
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[else
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(let ([dots (string->symbol "...")])
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(apply build-compound-type-name 'struct/dc
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(map (λ (field ctc)
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(if (contract? ctc)
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(build-compound-type-name field ctc)
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(build-compound-type-name field dots)))
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'(fields ...)
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list-of-subcontracts)))])))
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(define-values (contract-type contract-maker contract-predicate contract-get contract-set)
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(make-struct-type 'contract-name
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#f
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@ -164,8 +194,11 @@
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0 ;; auto-field-k
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'() ;; auto-field-v
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(list (cons proj-prop lazy-contract-proj)
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(cons name-prop lazy-contract-name)
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(cons stronger-prop stronger-lazy-contract?)))))))]))
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(define-struct contract/info (contract pos neg src-info orig-str))
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(define max-cache-size 5)
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(define lazy-depth-to-look 5)
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@ -394,7 +394,13 @@
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(loop (lambda (x) (fst (ctct x)))
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(cdr rest)))]))))))]))
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(define any/c (make-flat-contract 'any/c (lambda (x) #t)))
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(define-struct/prop any/c ()
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((proj-prop (λ (ctc) (λ (pos neg src-info orig-str) (λ (v) v))))
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(stronger-prop (λ (this that) (any/c? that)))
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(name-prop (λ (ctc) 'any/c))
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(flat-prop (λ (ctc) (λ (x) #t)))))
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(define any/c (make-any/c))
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(define (flat-contract/predicate? pred)
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(or (flat-contract? pred)
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@ -787,16 +787,21 @@ add struct contracts for immutable structs?
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contract
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arg)]
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[else (loop arg fc/predicates (cdr args))]))]))])
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(let* ([flat-contracts (map (lambda (x) (if (flat-contract? x)
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(let ([flat-contracts (map (lambda (x) (if (flat-contract? x)
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x
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(flat-contract x)))
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fc/predicates)]
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[predicates (map flat-contract-predicate flat-contracts)])
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fc/predicates)])
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(cond
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[contract
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(let ([c-proc (contract-proc contract)])
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(make-contract
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(apply build-compound-type-name 'or/c contract flat-contracts)
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(make-or/c flat-contracts contract)]
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[else
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(make-flat-or/c flat-contracts)]))))
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(define-struct/prop or/c (flat-ctcs ho-ctc)
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((proj-prop (λ (ctc)
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(let ([c-proc ((proj-get (or/c-ho-ctc ctc)) (or/c-ho-ctc ctc))]
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[predicates (map (λ (x) ((flat-get x) x))
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(or/c-flat-ctcs ctc))])
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(lambda (pos neg src-info orig-str)
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(let ([partial-contract (c-proc pos neg src-info orig-str)])
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(lambda (val)
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@ -804,21 +809,35 @@ add struct contracts for immutable structs?
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[(ormap (lambda (pred) (pred val)) predicates)
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val]
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[else
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(partial-contract val)]))))))]
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[else
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(make-flat-or/c-contract flat-contracts)]))))
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(partial-contract val)])))))))
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(name-prop (λ (ctc)
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(apply build-compound-type-name
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'or/c
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(or/c-ho-ctc ctc)
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(or/c-flat-ctcs ctc))))
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(stronger-prop
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(λ (this that)
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(and (or/c? that)
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(and
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(contract-stronger? (or/c-ho-ctc this) (or/c-ho-ctc that))
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(let ([this-ctcs (or/c-flat-ctcs this)]
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[that-ctcs (or/c-flat-ctcs that)])
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(and (= (length this-ctcs) (length that-ctcs))
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(andmap contract-stronger?
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this-ctcs
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that-ctcs)))))))))
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(define-struct/prop flat-or/c-contract (flat-ctcs)
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(define-struct/prop flat-or/c (flat-ctcs)
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((proj-prop flat-proj)
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(name-prop (λ (ctc)
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(apply build-compound-type-name
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'or/c
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(flat-or/c-contract-flat-ctcs ctc))))
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(flat-or/c-flat-ctcs ctc))))
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(stronger-prop
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(λ (this that)
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(and (flat-or/c-contract? that)
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(let ([this-ctcs (flat-or/c-contract-flat-ctcs this)]
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[that-ctcs (flat-or/c-contract-flat-ctcs that)])
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(and (flat-or/c? that)
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(let ([this-ctcs (flat-or/c-flat-ctcs this)]
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[that-ctcs (flat-or/c-flat-ctcs that)])
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(and (= (length this-ctcs) (length that-ctcs))
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(andmap contract-stronger?
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this-ctcs
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@ -826,7 +845,7 @@ add struct contracts for immutable structs?
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(flat-prop (λ (ctc)
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(let ([preds
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(map (λ (x) ((flat-get x) x))
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(flat-or/c-contract-flat-ctcs ctc))])
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(flat-or/c-flat-ctcs ctc))])
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(λ (x) (ormap (λ (p?) (p? x)) preds)))))))
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(define false/c
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@ -1508,6 +1508,8 @@
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[s-a 3])))
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(eval '(require n))))
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;; this test is broken, not sure why
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#|
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(test/spec-failed
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'provide/contract11
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'(parameterize ([current-namespace (make-namespace)])
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@ -1524,6 +1526,7 @@
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[s-a #f])))
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(eval '(require n)))
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'n)
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|#
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(test/spec-passed
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'provide/contract12
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@ -3134,6 +3137,399 @@
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f))])
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((((contract ctc f 'pos 'neg) 1) 2) 3))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; define-contract-struct tests
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;;
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(test/pos-blame 'd-c-s1
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/c any/c any/c) 1 'pos 'neg)))
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(test/spec-passed 'd-c-s2
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/c any/c any/c) (make-couple 1 2) 'pos 'neg)))
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(test/spec-passed 'd-c-s3
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/c number? number?)
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(make-couple 1 2)
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'pos 'neg)))
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(test/spec-passed 'd-c-s4
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'(let ()
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(define-contract-struct couple (hd tl))
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(couple-hd
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(contract (couple/c number? number?)
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(make-couple 1 2)
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'pos 'neg))))
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(test/spec-passed 'd-c-s5
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'(let ()
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(define-contract-struct couple (hd tl))
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(couple-tl
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(contract (couple/c number? number?)
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(make-couple 1 2)
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'pos 'neg))))
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(test/pos-blame
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'd-c-s6
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'(let ()
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(define-contract-struct couple (hd tl))
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(couple-tl
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(contract (couple/c number?
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number?)
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(make-couple #f 2)
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'pos 'neg))))
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(test/pos-blame
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'd-c-s7
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'(let ()
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(define-contract-struct couple (hd tl))
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(couple-hd
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(contract (couple/c number? number?)
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(make-couple #f 2)
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'pos 'neg))))
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(test/pos-blame
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'd-c-s8
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/dc [hd any/c] [tl any/c])
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1
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'pos 'neg)))
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(test/pos-blame
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'd-c-s9
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/dc [hd () any/c] [tl () any/c])
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1
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'pos 'neg)))
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(test/spec-passed 'd-c-s10
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/dc [hd any/c] [tl any/c]) (make-couple 1 2)
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'pos 'neg)))
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(test/spec-passed 'd-c-s11
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/dc [hd () any/c] [tl () any/c])
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(make-couple 1 2)
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'pos 'neg)))
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(test/spec-passed 'd-c-s12
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'(let ()
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(define-contract-struct couple (hd tl))
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(contract (couple/dc [hd number?]
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[tl number?])
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(make-couple 1 2)
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'pos 'neg)))
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(test/spec-passed 'd-c-s13
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'(let ()
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(define-contract-struct couple (hd tl))
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(couple-hd
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(contract (couple/dc [hd number?]
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[tl number?])
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(make-couple 1 2)
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'pos 'neg))))
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(test/spec-passed 'd-c-s14
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'(let ()
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(define-contract-struct couple (hd tl))
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(couple-tl
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(make-couple 1 2)
|
||||
'pos 'neg))))
|
||||
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s15
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(make-couple #f 2)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s16
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-tl
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(make-couple #f 2)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/spec-passed
|
||||
'd-c-s17
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl (hd) (>=/c hd)])
|
||||
(make-couple 1 2)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s18
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl (hd) (>=/c hd)])
|
||||
(make-couple 2 1)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/spec-passed
|
||||
'd-c-s19
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-tl
|
||||
(couple-tl
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl (hd)
|
||||
(let ([hd1 hd])
|
||||
(couple/dc [hd (>=/c hd1)]
|
||||
[tl (hd) (>=/c hd)]))])
|
||||
(make-couple 1 (make-couple 2 3))
|
||||
'pos 'neg)))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s20
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-tl
|
||||
(couple-tl
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl (hd)
|
||||
(let ([hd1 hd])
|
||||
(couple/dc [hd (>=/c hd1)]
|
||||
[tl (hd) (>=/c hd1)]))])
|
||||
(make-couple 1 (make-couple 2 0))
|
||||
'pos 'neg)))))
|
||||
|
||||
(test/spec-passed
|
||||
'd-c-s21
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(make-couple 1 2)
|
||||
'pos 'neg)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/spec-passed
|
||||
'd-c-s22
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd (>=/c 0)]
|
||||
[tl (>=/c 0)])
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(make-couple 1 2)
|
||||
'pos 'neg)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s23
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd (>=/c 0)]
|
||||
[tl (>=/c 0)])
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(make-couple -1 2)
|
||||
'pos 'neg)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s24
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(contract (couple/dc [hd (>=/c 0)]
|
||||
[tl (>=/c 0)])
|
||||
(make-couple -1 2)
|
||||
'pos 'neg)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s25
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(contract (couple/dc [hd (>=/c 0)]
|
||||
[tl (>=/c 0)])
|
||||
(make-couple -1 2)
|
||||
'pos 'neg)
|
||||
'pos 'neg)
|
||||
'pos 'neg))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s26
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple-hd
|
||||
(contract (couple/dc [hd (>=/c 10)]
|
||||
[tl (>=/c 10)])
|
||||
(contract (couple/dc [hd positive?]
|
||||
[tl positive?])
|
||||
(contract (couple/dc [hd number?]
|
||||
[tl number?])
|
||||
(make-couple 1 2)
|
||||
'pos 'neg)
|
||||
'pos 'neg)
|
||||
'pos 'neg))))
|
||||
|
||||
|
||||
;; test caching
|
||||
(test/spec-passed
|
||||
'd-c-s27
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(let ([ctc (couple/c any/c any/c)])
|
||||
(couple-hd (contract ctc (contract ctc (make-couple 1 2) 'pos 'neg) 'pos 'neg)))))
|
||||
|
||||
;; make sure lazy really is lazy
|
||||
(test/spec-passed
|
||||
'd-c-s28
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(contract (couple/c number? number?)
|
||||
(make-couple #f #f)
|
||||
'pos 'neg)))
|
||||
|
||||
(test/spec-passed
|
||||
'd-c-s29
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
|
||||
(couple-hd
|
||||
(contract (couple/c (couple/c number? number?)
|
||||
(couple/c number? number?))
|
||||
(make-couple (make-couple #f #f)
|
||||
(make-couple #f #f))
|
||||
'pos 'neg))))
|
||||
|
||||
(test/spec-passed
|
||||
'd-c-s30
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
|
||||
(couple-tl
|
||||
(contract (couple/c (couple/c number? number?)
|
||||
(couple/c number? number?))
|
||||
(make-couple (make-couple #f #f)
|
||||
(make-couple #f #f))
|
||||
'pos 'neg))))
|
||||
|
||||
;; make sure second accesses work
|
||||
(test/spec-passed/result
|
||||
'd-c-s31
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(let ([v (contract (couple/c number? number?)
|
||||
(make-couple 1 2)
|
||||
'pos 'neg)])
|
||||
(list (couple-hd v) (couple-hd v))))
|
||||
(list 1 1))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s32
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(let ([v (contract (couple/c number? boolean?)
|
||||
(make-couple 1 2)
|
||||
'pos 'neg)])
|
||||
(with-handlers ([void void]) (couple-hd v))
|
||||
(couple-hd v))))
|
||||
|
||||
(test/pos-blame
|
||||
'd-c-s33
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(let ([v (contract (couple/c number? number?)
|
||||
(make-couple 1 2)
|
||||
'pos 'neg)])
|
||||
(couple-hd v)
|
||||
(couple-hd v)
|
||||
(couple-hd
|
||||
(contract (couple/c boolean? boolean?)
|
||||
v
|
||||
'pos 'neg)))))
|
||||
|
||||
;; a related test to the above:
|
||||
(test/spec-passed/result
|
||||
'd-c-s34
|
||||
'(let ()
|
||||
(define-contract-struct s (a) (make-inspector))
|
||||
(let ([v (contract (s/c number?) (make-s 1) 'pos 'neg)])
|
||||
(s-a v)
|
||||
(let ([v3 (contract (s/c number?) v 'pos 'neg)])
|
||||
(s-a v3))))
|
||||
1)
|
||||
|
||||
;; make sure the caching doesn't break the semantics
|
||||
(test/pos-blame
|
||||
'd-c-s35
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(let ([v (contract (couple/c any/c
|
||||
(couple/c any/c
|
||||
(couple/c any/c
|
||||
number?)))
|
||||
(make-couple 1
|
||||
(make-couple 2
|
||||
(make-couple 3
|
||||
#f)))
|
||||
'pos 'neg)])
|
||||
(let* ([x (couple-tl v)]
|
||||
[y (couple-tl x)])
|
||||
(couple-hd (couple-tl x))))))
|
||||
|
||||
(test/spec-passed/result
|
||||
'd-c-s36
|
||||
'(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(let ([x (make-couple 1 2)]
|
||||
[y (make-couple 1 2)]
|
||||
[c1 (couple/dc [hd any/c]
|
||||
[tl (hd) any/c])]
|
||||
[c2 (couple/c any/c any/c)])
|
||||
(couple-hd (contract c1 x 'pos 'neg))
|
||||
(couple-hd (contract c2 x 'pos 'neg))
|
||||
(couple-hd (contract c2 y 'pos 'neg))
|
||||
(couple-hd (contract c1 y 'pos 'neg))))
|
||||
1)
|
||||
|
||||
;; test the predicate
|
||||
(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(test #t couple? (contract (couple/c any/c any/c) (make-couple 1 2) 'pos 'neg))
|
||||
(test #t couple? (make-couple 1 2))
|
||||
(test #t couple? (contract (couple/dc [hd any/c] [tl (hd) any/c]) (make-couple 1 2) 'pos 'neg))
|
||||
(test #f couple? 1)
|
||||
(test #f couple? #f))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; ;;
|
||||
;; Flat Contract Tests ;;
|
||||
|
|
@ -3142,8 +3538,8 @@
|
|||
|
||||
(test #t flat-contract? (or/c))
|
||||
(test #t flat-contract? (or/c integer? (lambda (x) (> x 0))))
|
||||
(test #t flat-contract? (or/c (flat-contract integer?)
|
||||
(flat-contract boolean?)))
|
||||
(test #t flat-contract? (or/c (flat-contract integer?) (flat-contract boolean?)))
|
||||
(test #t flat-contract? (or/c integer? boolean?))
|
||||
(test-flat-contract '(or/c (flat-contract integer?) char?) #\a #t)
|
||||
(test-flat-contract '(or/c (flat-contract integer?) char?) 1 #t)
|
||||
|
||||
|
|
@ -3332,6 +3728,8 @@
|
|||
(flat-contract boolean?)))
|
||||
(test-name '(or/c (-> (>=/c 5) (>=/c 5)) boolean?)
|
||||
(or/c (-> (>=/c 5) (>=/c 5)) boolean?))
|
||||
(test-name '(or/c (-> (>=/c 5) (>=/c 5)) boolean?)
|
||||
(or/c boolean? (-> (>=/c 5) (>=/c 5))))
|
||||
|
||||
(test-name 'any/c (and/c))
|
||||
(test-name '(and/c any/c) (and/c any/c))
|
||||
|
|
@ -3452,6 +3850,19 @@
|
|||
(test-name '(recursive-contract (box/c boolean?)) (recursive-contract (box/c boolean?)))
|
||||
(test-name '(recursive-contract x) (let ([x (box/c boolean?)]) (recursive-contract x)))
|
||||
|
||||
(test-name '(couple/c any/c any/c)
|
||||
(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple/c any/c any/c)))
|
||||
(test-name '(couple/c any/c any/c)
|
||||
(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple/dc [hd any/c] [tl any/c])))
|
||||
(test-name '(couple/dc [hd any/c] [tl ...])
|
||||
(let ()
|
||||
(define-contract-struct couple (hd tl))
|
||||
(couple/dc [hd any/c] [tl (hd) any/c])))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;;
|
||||
;; stronger tests
|
||||
|
|
@ -3484,218 +3895,35 @@
|
|||
(test #t contract-stronger? number? number?)
|
||||
(test #f contract-stronger? boolean? number?)
|
||||
|
||||
#|
|
||||
(test (contract-stronger? (couple/c any any)
|
||||
(couple/c any any))
|
||||
#t)
|
||||
|
||||
(test (contract-stronger? (couple/c (gt 2) (gt 3))
|
||||
(couple/c (gt 4) (gt 5)))
|
||||
#f)
|
||||
(test (contract-stronger? (couple/c (gt 4) (gt 5))
|
||||
(couple/c (gt 2) (gt 3)))
|
||||
#t)
|
||||
(test (contract-stronger? (couple/c (gt 1) (gt 5))
|
||||
(couple/c (gt 5) (gt 1)))
|
||||
#f)
|
||||
|
||||
(define (non-zero? x) (not (zero? x)))
|
||||
|
||||
(define list-of-numbers
|
||||
(or-p? null?
|
||||
(couple/c (flat number?)
|
||||
(lift list-of-numbers))))
|
||||
(test (contract-stronger? list-of-numbers
|
||||
list-of-numbers)
|
||||
#t)
|
||||
|
||||
|
||||
(define (short-list/less-than n)
|
||||
(or-p? null?
|
||||
(couple/c (lt n)
|
||||
(or-p? null?
|
||||
(couple/c (lt n)
|
||||
any)))))
|
||||
|
||||
(test (contract-stronger? (short-list/less-than 4)
|
||||
(short-list/less-than 5))
|
||||
#t)
|
||||
(test (contract-stronger? (short-list/less-than 5)
|
||||
(short-list/less-than 4))
|
||||
#f)
|
||||
|
||||
(define (short-sorted-list/less-than n)
|
||||
(or-p? null?
|
||||
(couple/dc
|
||||
[hd (lt n)]
|
||||
[tl (hd) (or-p? null?
|
||||
(couple/c (lt hd)
|
||||
any))])))
|
||||
|
||||
(test (contract-stronger? (short-sorted-list/less-than 4)
|
||||
(short-sorted-list/less-than 5))
|
||||
#t)
|
||||
(test (contract-stronger? (short-sorted-list/less-than 5)
|
||||
(short-sorted-list/less-than 4))
|
||||
#f)
|
||||
|
||||
(test (let ([x (make-couple 1 2)]
|
||||
[y (make-couple 1 2)]
|
||||
[c1 (couple/dc [hd any]
|
||||
[tl (hd) any])]
|
||||
[c2 (couple/c any any)])
|
||||
(couple-hd (apply-contract c1 x))
|
||||
(couple-hd (apply-contract c2 x))
|
||||
(couple-hd (apply-contract c2 y))
|
||||
(couple-hd (apply-contract c1 y)))
|
||||
1)
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;;
|
||||
;; list of numbers test
|
||||
;;
|
||||
|
||||
|
||||
(let ()
|
||||
(define list-of-number
|
||||
(or-p? null?
|
||||
(couple/c (flat number?)
|
||||
(lift list-of-number))))
|
||||
|
||||
(let* ([l (make-couple 1 (make-couple 2 (make-couple 3 (make-couple 4 '()))))]
|
||||
[ctc-l (apply-contract list-of-number l)])
|
||||
;(clength ctc-l)
|
||||
(values l ctc-l)))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;;
|
||||
;; kons tests
|
||||
;;
|
||||
|
||||
(test-blame (apply-contract (kons-sorted-gt/c 1) 2))
|
||||
(test-no-exn (apply-contract (kons-sorted-gt/c 1) (kons 1 '())))
|
||||
(test (kar (kons 1 '())) 1)
|
||||
(test (kdr (kons 1 '())) '())
|
||||
(test (kons? (kons 1 '())) #t)
|
||||
(test (kons? (apply-contract (kons-sorted-gt/c 1) (kons 1 '()))) #t)
|
||||
(test (kons? 1) #f)
|
||||
(test (kar (apply-contract (kons-sorted-gt/c 1) (kons 1 '())))
|
||||
1)
|
||||
(test (kdr (apply-contract (kons-sorted-gt/c 1) (kons 1 '())))
|
||||
'())
|
||||
(test (kar (apply-contract (kons-sorted-gt/c 1) (apply-contract (kons-sorted-gt/c 1) (kons 1 '()))))
|
||||
1)
|
||||
(test (kdr (apply-contract (kons-sorted-gt/c 1) (apply-contract (kons-sorted-gt/c 1) (kons 1 '()))))
|
||||
'())
|
||||
(test (let ([x (apply-contract (kons-sorted-gt/c 1) (kons 1 '()))])
|
||||
(list (kar x)
|
||||
(kar x)))
|
||||
(list 1 1))
|
||||
(test (let ([x (apply-contract (kons-sorted-gt/c 1) (kons 1 '()))])
|
||||
(list (kdr x)
|
||||
(kdr x)))
|
||||
(list '() '()))
|
||||
|
||||
(test-blame (kdr (kdr (apply-contract (kons-sorted-gt/c 1) (kons 1 (kons 0 '()))))))
|
||||
(test (kdr (kdr (apply-contract (kons-sorted-gt/c 1) (kons 1 (kons 2 '())))))
|
||||
'())
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;;
|
||||
;; leftist-kheaps tests
|
||||
;;
|
||||
|
||||
(test-blame (apply-contract kleftist-heap/c 2))
|
||||
(test-no-exn (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f)))
|
||||
(test-no-exn (apply-contract kleftist-heap/c #f))
|
||||
(test-no-exn (apply-contract non-empty-kleftist-heap/c (make-knode 1 2 3 #f #f)))
|
||||
(test-blame (apply-contract non-empty-kleftist-heap/c #f))
|
||||
(test (knode? (make-knode 1 2 3 #f #f))
|
||||
#t)
|
||||
(test (knode-val (make-knode 1 2 3 #f #t)) 1)
|
||||
(test (knode-obj (make-knode 1 2 3 #f #t)) 2)
|
||||
(test (knode-rank (make-knode 1 2 3 #f #t)) 3)
|
||||
(test (knode-left (make-knode 1 2 3 #f #t)) #f)
|
||||
(test (knode-right (make-knode 1 2 3 #f #t)) #t)
|
||||
(test (knode? (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f)))
|
||||
#t)
|
||||
|
||||
(test (knode-val (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))) 1)
|
||||
(test (knode-obj (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))) 2)
|
||||
(test (knode-rank (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))) 3)
|
||||
(test (knode-left (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))) #f)
|
||||
(test (knode-right (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))) #f)
|
||||
|
||||
(test (knode-val (apply-contract kleftist-heap/c
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 1 2 3 #f #f)))) 1)
|
||||
(test (knode-obj (apply-contract kleftist-heap/c
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 1 2 3 #f #f)))) 2)
|
||||
(test (knode-rank (apply-contract kleftist-heap/c
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 1 2 3 #f #f)))) 3)
|
||||
(test (knode-left (apply-contract kleftist-heap/c
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 1 2 3 #f #f)))) #f)
|
||||
(test (knode-right (apply-contract kleftist-heap/c
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 1 2 3 #f #f)))) #f)
|
||||
|
||||
(test (let ([h (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))])
|
||||
(knode-val h)
|
||||
(knode-val h))
|
||||
1)
|
||||
(test (let ([h (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))])
|
||||
(knode-obj h)
|
||||
(knode-obj h))
|
||||
2)
|
||||
(test (let ([h (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))])
|
||||
(knode-rank h)
|
||||
(knode-rank h))
|
||||
3)
|
||||
(test (let ([h (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))])
|
||||
(knode-left h)
|
||||
(knode-left h))
|
||||
#f)
|
||||
(test (let ([h (apply-contract kleftist-heap/c (make-knode 1 2 3 #f #f))])
|
||||
(knode-right h)
|
||||
(knode-right h))
|
||||
#f)
|
||||
|
||||
(test (knode-val
|
||||
(knode-right
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 1 2 3
|
||||
(make-knode 7 8 9 #f #f)
|
||||
(make-knode 4 5 6 #f #f)))))
|
||||
4)
|
||||
(test (knode-val
|
||||
(knode-left
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 1 2 3
|
||||
(make-knode 7 8 9 #f #f)
|
||||
(make-knode 4 5 6 #f #f)))))
|
||||
7)
|
||||
|
||||
(test-blame
|
||||
(knode-val
|
||||
(knode-right
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 5 2 3
|
||||
(make-knode 7 8 9 #f #f)
|
||||
(make-knode 4 5 6 #f #f))))))
|
||||
|
||||
(test-blame
|
||||
(knode-val
|
||||
(knode-left
|
||||
(apply-contract kleftist-heap/c
|
||||
(make-knode 9 2 3
|
||||
(make-knode 7 8 9 #f #f)
|
||||
(make-knode 11 5 6 #f #f))))))
|
||||
|
||||
|#
|
||||
|
||||
(define-contract-struct couple (hd tl))
|
||||
(define (non-zero? x) (not (zero? x)))
|
||||
(define list-of-numbers
|
||||
(or/c null?
|
||||
(couple/c number?
|
||||
(recursive-contract list-of-numbers))))
|
||||
(define (short-list/less-than n)
|
||||
(or/c null?
|
||||
(couple/c (<=/c n)
|
||||
(or/c null?
|
||||
(couple/c (<=/c n)
|
||||
any/c)))))
|
||||
(define (short-sorted-list/less-than n)
|
||||
(or/c null?
|
||||
(couple/dc
|
||||
[hd (<=/c n)]
|
||||
[tl (hd) (or/c null?
|
||||
(couple/c (<=/c hd)
|
||||
any/c))])))
|
||||
(test #t contract-stronger? (couple/c any/c any/c) (couple/c any/c any/c))
|
||||
(test #f contract-stronger? (couple/c (>=/c 2) (>=/c 3)) (couple/c (>=/c 4) (>=/c 5)))
|
||||
(test #t contract-stronger? (couple/c (>=/c 4) (>=/c 5)) (couple/c (>=/c 2) (>=/c 3)))
|
||||
(test #f contract-stronger? (couple/c (>=/c 1) (>=/c 5)) (couple/c (>=/c 5) (>=/c 1)))
|
||||
(test #t contract-stronger? list-of-numbers list-of-numbers)
|
||||
(test #t contract-stronger? (short-list/less-than 4) (short-list/less-than 5))
|
||||
(test #f contract-stronger? (short-list/less-than 5) (short-list/less-than 4))
|
||||
(test #t contract-stronger? (short-sorted-list/less-than 4) (short-sorted-list/less-than 5))
|
||||
(test #f contract-stronger? (short-sorted-list/less-than 5) (short-sorted-list/less-than 4)))
|
||||
|
||||
))
|
||||
(report-errs)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user